附註:Title from e-book title screen (viewed Sept. 3, 2005).
Includes bibliographical references.
Abstracts & keywords; Abstracts & keywords French; Abstracts & keywords German; Guest editorial; Evaluation of two library-based and one expert reference service on the Web; Digital reference services: how do the library-based services compare with the expert services?; How good are the free digital reference services? A comparison of library-based and expert services; Digital reference services for young library users: a comparison of four services.
摘要:It has become increasingly common for libraries to provide a reference service which operates via e-mail or through online forms. This paper compares the performance of three digital reference services available on the World Wide Web, namely, AllExperts, Ask a Librarian, and Internet Public Library (a fourth service, Ask Bob, was included initially but eventually excluded). The online digital reference/''expert'' services are generally very effective; most provide an answer within three days, and include suggestions for sources of further information. Although the general response rate from al.
